package design.mode.effective_java.chapter4.item22;

/**
 * 恒定的实用程序类
 *
 * @author ZhongMingde on 2021/8/14
 */

public class PhysicalConstants1 {
    private PhysicalConstants1(){} // 将构造私有，组织实例化
    public static final double AVOGADROS_NUMBER = 6.022_140_857e23;
    public static final double BOLTZMANN_CONST = 1.380_648_52e-23;
    public static final double ELECTRON_MASS = 9.109_383_56e-31;


}
